258071673 has 4 divisors (see below), whose sum is σ = 344095568. Its totient is φ = 172047780.

The previous prime is 258071647. The next prime is 258071677. The reversal of 258071673 is 376170852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 258071673 - 2⁵ = 258071641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258071677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43011943 + ... + 43011948.

It is an arithmetic number, because the mean of its divisors is an integer number (86023892).

Almost surely, 2^258071673 is an apocalyptic number.

It is an amenable number.

258071673 is a deficient number, since it is larger than the sum of its proper divisors (86023895).

258071673 is an equidigital number, since it uses as much as digits as its factorization.

258071673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86023894.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 258071673 is about 16064.6093323180. The cubic root of 258071673 is about 636.6686211332.

The spelling of 258071673 in words is "two hundred fifty-eight million, seventy-one thousand, six hundred seventy-three".